intr_handler(9)

💖 NAME 💖

Okay so this is the intr_handler(9) page from the Kernel API Manual, and it's literally about the ISR routine. Bestie, we are in interrupt-handler territory, and the vibes are immaculate. 🎀

intr_handler — ISR routine. Periodt.

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✨ SYNOPSIS ✨

irqreturn_t intr_handler (int irq , void *dev_id );

That's the whole signature, no cap. Copy it exactly, bestie. 💅

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🌸 ARGUMENTS 🌸

• irq — the irq number. Like, which IRQ are we even talking about? This one. 🔥
• dev_id — the device id pointer. Your little device-identifying bestie. 🫶

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💫 RETURN 💫

Return check, bestie: this handler returns IRQ_NONE if the CE/UE interrupt is not set, or IRQ_HANDLED otherwise. That's the tea. ☕✨

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🦋 SEE ALSO 🦋

Kernel file ./drivers/edac/zynqmp_edac.c — and the whole little friend group:

• struct ecc_error_info(9)
• struct ecc_status(9)
• struct edac_priv(9)
• get_error_info(9)
• handle_error(9)
• get_eccstate(9)
• write_fault_count(9)

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💌 xoxo, signing off from source ./drivers/edac, dated October 2026 — bye bestie, slay your interrupts responsibly! 💜🌈